Update notes for submitted changes

* features: Update documentation for automon and automixmon

db/ace3334da1631e2d8d4e499ce409d48cff1aa2

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+Code-Review+1: Joshua Colp <jcolp@sangoma.com>
+Code-Review+1: Kevin Harwell <kharwell@digium.com>
+Code-Review+2: George Joseph <gjoseph@digium.com>
+Verified+2: Kevin Harwell <kharwell@digium.com>
+Submitted-by: Kevin Harwell <kharwell@digium.com>
+Submitted-at: Fri, 08 Jul 2022 10:25:30 -0500
+Reviewed-on: https://gerrit.asterisk.org/c/asterisk/+/18734
+Project: asterisk
+Branch: refs/heads/18